having firearms injected into that environment is not healthy. there is also a lot of dissenting views on campus. all political spectrum represented on campus for some their opinions on many different issues. having firearms present in those kinds of discussions is also, i think, potentially volatile. >> your own personal concerns about, for example, grading students? >> i connect with my students on i a pretty deep level, i think, not only in lecture, but also when i pass on their grading exams. sometimes, a failing grade that i may have to issue as part of my duty as a professor could be the final failing grade that pushes them out of the diversity. that has a potentially big impact on their life, and that is a potential for some rational behavior. after all, they are human beings. i would not a fought -- want a firearm in my own pocket throughout my daily experiences, and i do not believe human being should be trusted to behave appropriately with a firearm circumstances. >> last i was giving a talk at the university church in boulder. a woman